Objective:To investigate the prevalence and risk factors of bronchial asthma in the Li ethnic group in Hainan,China.Methods:This study employed a stratified random sample design using custom-designed questionnaires.Su...Objective:To investigate the prevalence and risk factors of bronchial asthma in the Li ethnic group in Hainan,China.Methods:This study employed a stratified random sample design using custom-designed questionnaires.Subjects with asthma-like symptoms were first identified by two rounds of surveys and then confirmed by respiratory physicians using pulmonary function test,bronchial dilation test and challenge test.Demographic data,information on family history of asthma,history of allergies,smoking habits,domestic cooking fuel and other potential risk factors were collected.Logistic regression was performed to evaluate risk factors for asthma.Results: The prevalence of asthma in the Li ethnic group was 3.38%,much higher than the national average level in China.Aging,agriculture industry(the rubber industry in particular),rural residence,family history of asthma,history of allergies,cold air,inhalation of dust and irritant gases,smoking,domestic cooking fuel and living environment were associated with increased risk of asthma.Conclusions:The high prevalence of asthma in the Li ethnic group highlights the importance of asthma prevention and treatment in this population.Risk factors indentified in this study warrant special attention.Elevating public awareness about asthma in local communities will benefit the prevention of the disease.展开更多
Objective: To investigate the risk factors of chronic obstructive pulmonary disease(COPD) in Li and Han ethnic group in Hainan, China. Methods: All subjects were randomly selected from various regions in Hainan. Gener...Objective: To investigate the risk factors of chronic obstructive pulmonary disease(COPD) in Li and Han ethnic group in Hainan, China. Methods: All subjects were randomly selected from various regions in Hainan. General characteristics were compared between COPD cases and healthy control cases in both Li and Han ethnic groups. The odds ratio(OR), the corresponding 95% confidence interval(CI) of COPD were calculated by logistic regression.Results: A total of 277 Li COPD cases, 307 Li healthy control subjects, 290 Han COPD cases and 301 Han healthy control were included in this study. In both the Li and Han groups, the average age exceeded 65 years, and the cigarette number smoked per day and the smoking duration were correlated with risk of COPD. In the Li COPD subjects, low weight, smoking, and recurrent infection of respiratory tract were mainly risk factors; while the mainly risk factor of Han COPD subjects was family history of respiratory disease. Conclusions: The risk factors are different in COPD subjects of Han and Li nationalities in Hainan of China. The age and smoking are strongly correlated with COPD risk.展开更多
Objective:To study correlation between the Xba I polymorphism of apoB gene and plasma lipid profiles in Li ethnic group.Methods:Total 1S1 cases of healthy Li people were recruited randomly by cluster sampling and 200 ...Objective:To study correlation between the Xba I polymorphism of apoB gene and plasma lipid profiles in Li ethnic group.Methods:Total 1S1 cases of healthy Li people were recruited randomly by cluster sampling and 200 Han people were recruited as control;blood was drawn to analyze Xba I polymorphism distribution of apoB gene and serum lipid levels.Results:There were lower serum total cholesterol(TC)and low density lipoprotein cholesterol(LDL-C)levels in serum of Li people;while,high density lipoprotein cholesterol(HDL-C),X^-/X^-genotype and X^+allele frequencies exhibited higher levels than Han people.Interestingly,HDL-C level was reduced,while LDL-C level was enhanced in subjects carrying heterozygous(X^-/X^-)genotype compared to homozygous(X^-/X^-)genotype.Additionally,there were no difference in serum level of triglyceride,TC,apoprotein A(apo A)and apoprotein B(apo B)between Li and Han people,the same results were showed between X^-/X^+and X^-/X^-genotype carriers.Conclusions:XbaⅠpolymorphism of apoB gene is correlated to the profiles of serum lipid level,X^-/X^+genotype carriers are phenotyped with higher LDL-C level and lower level of HDL-C in Li ethnic group.展开更多
Objective:To screen the blood group system genes of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of Li ethnic group in Hainan Province and provide laboratory data for the rare blood group database in this ar...Objective:To screen the blood group system genes of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of Li ethnic group in Hainan Province and provide laboratory data for the rare blood group database in this area.Methods:The alleles of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of 300 voluntary participants of Li ethnic group in Hainan were detected by sequence-specific primer polymerase chain reaction,and the polymorphism was analyzed.Results:The allele frequencies of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of Li ethnic groups in Hainan Province are 0.9583 for Fy^(a),0.0417 for Fy^(b),0.8350 for Au^(a),0.1650 for Au^(b),0.4500 for Jk^(a),0.5500 for Jk^(b),0.0667 for Di^(a),0.9333 for Di^(b),0.1017 for Doa and 0.8983 for Dob,respectively.The antigen incompatibility rates of Fy^(a)/Fy^(b),Au^(a)/Au^(b),Jk^(a)/Jk^(b),Di^(a)/Di^(b),Doa/Dob of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems were 7.67%,23.76%,37.25%,11.67%and 16.60%,respectively.Conclusion:The gene frequencies of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of Li ethnic group in Hainan Province are polymorphic,and the antigen incompatibility rates of alleles are higher,which is quite different from that of other nationalities in China and with unique ethnic distribution characteristics.It is of great significance to establish the rare blood group database in this region.展开更多
基金supported by Hainan Natural Science Fund (2002-203-30222)
文摘Objective:To investigate the prevalence and risk factors of bronchial asthma in the Li ethnic group in Hainan,China.Methods:This study employed a stratified random sample design using custom-designed questionnaires.Subjects with asthma-like symptoms were first identified by two rounds of surveys and then confirmed by respiratory physicians using pulmonary function test,bronchial dilation test and challenge test.Demographic data,information on family history of asthma,history of allergies,smoking habits,domestic cooking fuel and other potential risk factors were collected.Logistic regression was performed to evaluate risk factors for asthma.Results: The prevalence of asthma in the Li ethnic group was 3.38%,much higher than the national average level in China.Aging,agriculture industry(the rubber industry in particular),rural residence,family history of asthma,history of allergies,cold air,inhalation of dust and irritant gases,smoking,domestic cooking fuel and living environment were associated with increased risk of asthma.Conclusions:The high prevalence of asthma in the Li ethnic group highlights the importance of asthma prevention and treatment in this population.Risk factors indentified in this study warrant special attention.Elevating public awareness about asthma in local communities will benefit the prevention of the disease.
基金financially supported by the National Natural Science Foundation of China(No.81160008 and 81660013)
文摘Objective: To investigate the risk factors of chronic obstructive pulmonary disease(COPD) in Li and Han ethnic group in Hainan, China. Methods: All subjects were randomly selected from various regions in Hainan. General characteristics were compared between COPD cases and healthy control cases in both Li and Han ethnic groups. The odds ratio(OR), the corresponding 95% confidence interval(CI) of COPD were calculated by logistic regression.Results: A total of 277 Li COPD cases, 307 Li healthy control subjects, 290 Han COPD cases and 301 Han healthy control were included in this study. In both the Li and Han groups, the average age exceeded 65 years, and the cigarette number smoked per day and the smoking duration were correlated with risk of COPD. In the Li COPD subjects, low weight, smoking, and recurrent infection of respiratory tract were mainly risk factors; while the mainly risk factor of Han COPD subjects was family history of respiratory disease. Conclusions: The risk factors are different in COPD subjects of Han and Li nationalities in Hainan of China. The age and smoking are strongly correlated with COPD risk.
基金supported by natural science foundation of Hainan province.Haikou,China(No.30726)
文摘Objective:To study correlation between the Xba I polymorphism of apoB gene and plasma lipid profiles in Li ethnic group.Methods:Total 1S1 cases of healthy Li people were recruited randomly by cluster sampling and 200 Han people were recruited as control;blood was drawn to analyze Xba I polymorphism distribution of apoB gene and serum lipid levels.Results:There were lower serum total cholesterol(TC)and low density lipoprotein cholesterol(LDL-C)levels in serum of Li people;while,high density lipoprotein cholesterol(HDL-C),X^-/X^-genotype and X^+allele frequencies exhibited higher levels than Han people.Interestingly,HDL-C level was reduced,while LDL-C level was enhanced in subjects carrying heterozygous(X^-/X^-)genotype compared to homozygous(X^-/X^-)genotype.Additionally,there were no difference in serum level of triglyceride,TC,apoprotein A(apo A)and apoprotein B(apo B)between Li and Han people,the same results were showed between X^-/X^+and X^-/X^-genotype carriers.Conclusions:XbaⅠpolymorphism of apoB gene is correlated to the profiles of serum lipid level,X^-/X^+genotype carriers are phenotyped with higher LDL-C level and lower level of HDL-C in Li ethnic group.
基金Hainan Provincial Natural Science Foundation of China(No.820QN410)Hainan Province Clinical Medical Center(No.QWYH202175)。
文摘Objective:To screen the blood group system genes of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of Li ethnic group in Hainan Province and provide laboratory data for the rare blood group database in this area.Methods:The alleles of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of 300 voluntary participants of Li ethnic group in Hainan were detected by sequence-specific primer polymerase chain reaction,and the polymorphism was analyzed.Results:The allele frequencies of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of Li ethnic groups in Hainan Province are 0.9583 for Fy^(a),0.0417 for Fy^(b),0.8350 for Au^(a),0.1650 for Au^(b),0.4500 for Jk^(a),0.5500 for Jk^(b),0.0667 for Di^(a),0.9333 for Di^(b),0.1017 for Doa and 0.8983 for Dob,respectively.The antigen incompatibility rates of Fy^(a)/Fy^(b),Au^(a)/Au^(b),Jk^(a)/Jk^(b),Di^(a)/Di^(b),Doa/Dob of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems were 7.67%,23.76%,37.25%,11.67%and 16.60%,respectively.Conclusion:The gene frequencies of Duffy,Lutheran,Kidd,Diego,Dombrock blood group systems of Li ethnic group in Hainan Province are polymorphic,and the antigen incompatibility rates of alleles are higher,which is quite different from that of other nationalities in China and with unique ethnic distribution characteristics.It is of great significance to establish the rare blood group database in this region.
